Pergola Corner Joint with Extension Black Coated for 9 x 9 cm beams open model - Per Piece

Wovar offers a unique pergola corner bracket with extension, made specifically for 9 x 9 cm beams and posts. The bracket is made of Galvanised steel and finished with a black powder coating. This corner bracket is only available at Wovar and is a useful addition for any large pergola.

Which beams can I use?

This pergola bracket is suitable for 9 x 9 cm beams and posts, but can also be used for those measuring 8.5 x 8.5 cm. You can use thicker beams and posts, but keep in mind that they will extend past the edges of the bracket. If you are looking for a pergola bracket that is bigger, check out our 12 x 12 cm pergola brackets.

Installing pergola corner brackets 9 x 9 cm

The black corner brackets with extension have a total of 8 mounting holes. The holes have a diameter of 5.5 mm. We recommend using wafer head screws black 8 x 80 mm.

Drill pilot holes in the wood with a 3.5 mm thick hardwood drill bit. This will make is safer and easier to drive the screws in the wood. To fasten the screws, use a matching torx 25 bit, and make sure they are tight. 

Build an extra strong pergola

To construct an extra strong pergola, you can add braces to the brackets. This can easily be done with 2 wafer head screws. This will create an incredibly stable and durable pergola. The length of these wafer head screws depends on the length and width of the brace. Below, we give a few examples.

• A 50 x 90 mm brace = wafer head screws 6 x 120 mm
• A 50 x 150 mm brace = wafer head screws 6 x 140 mm
• A 50 x 200 mm brace = wafer head screws 6 x 160 mm

Drill pilot holes before driving in the screws. The pilot holes should be at approximately 10 cm from the long side of the brace. You cannot drill these holes with a regular hardwood drill bit due to the length of the screws. Instead, use an auger drill bit 6 x 230 mm. The depth of the hole should be 40 mm less than the length of the screw. For example, a 120 mm long screw requires a pilot hole with a depth of 80 mm.

Tip: By drilling a 10 mm hole with a spade drill bit, you can countersink the wafer head screws in the wood. This results in a clean finish.

Buy pergola corner brackets black

Order these pergola brackets for 9 x 9 cm posts and beams. Businesses in the construction and landscaping sector enjoy even more benefits with a free business account.

Check out all our pergola brackets for brackets of different sizes and purposes, or explore our entire range of anchors and brackets.